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Photo#1020211
Wasp

Wasp
Orcutt, Santa Barbara County, California, USA
May 26, 2014
Size: ~2mm
This wasp was attacking aphids on a cherry tree. Someone (https://www.flickr.com/photos/44150996@N06/14101666270/) ID'd it as Alloxystini (Cynipoidea, Figitidae, Charipinae ) on my flickr page, it would be a new tribe for the guide if someone can confirm

Moved
Moved from Figitidae.

I have no problem ...
... calling this a member of the Charipinae (the only group of cynipoids that are parasitoids (in this case hyperparasitoids) of aphids. Alloxysta is the most common genus in this subfamily, but I can't make out the details that would separate this from other genera, so I'll leave it as Charipinae.

 
ID
Is there another angle that would help? They're not the sharpest, but I do have some other shots of her.

Moved
Moved from ID Request.

Figitidaeā€¦
Can't determine from this image alone, but if the scutellum lacks a disc and a central pit, then it is likely Charipinae due to the short petiole and smooth mesoscutum. Some in this group attack braconids or chalcids that parasitize aphids.

See reference here.

 
Fagitidae...
But I would guess Fagitinae as it doesn't have the setae you would expect for Charipinae. On the flicker image, it is evident it isn't Eucolinae (lacking disc and pit).

All of these groups are represented here in the guide. The families have recently been made tribes though so the guide needs updating.

I think we need to leave it at Fagitid for now though.

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